Portable movable construction scaffold for railway tunnel

Abstract

The utility model discloses a portable mobile construction scaffold for railway tunnel, which comprises a mobile chassis, a support frame, a plurality of hinge elements, an adjusting support assembly, an adjusting support leg, a locking element and a scaffold assembly. The utility model has the advantages of ingenious design, easy carrying and disassembling, safety and reliability, fast construction in a small space, safety guarantee, construction efficiency improvement, labor consumption reduction and high efficiency, economy and safety in modern railway tunnel construction.

Description

Technical Field

[0001] This utility model relates to a scaffold, specifically a lightweight and mobile construction scaffold for railway tunnels, belonging to the field of building construction technology. Background Technology

[0002] Railways are an important mode of transportation in my country, and railway tunnels are one of their main structures. After construction, railway tunnels often require various repairs due to reasons such as water leakage, cracking, concrete falling out of the tunnel interior, and construction quality issues. Repairing the tunnel arch is a key aspect of railway tunnel maintenance. Every year, the railway invests significant manpower and resources in repairing defects in railway tunnel arches.

[0003] With the continuous development of railway tunnel construction and maintenance, especially the special needs of repair operations, the design and application of traditional scaffolding face severe challenges. Particularly during railway tunnel maintenance windows, due to strict time constraints, the efficiency of scaffolding assembly and disassembly, as well as operational flexibility, are crucial. However, current railway tunnel construction scaffolding generally suffers from the following problems:

[0004] 1. Large size and inconvenient handling: Traditional scaffolding is usually made of steel pipes, couplers, or aluminum alloys, and the overall structure is relatively heavy. Even after disassembly and assembly, it still requires a large storage space. When carrying out maintenance in tunnels, due to the confined space and complex working environment, the handling and transportation of traditional scaffolding requires a lot of manpower and mechanical equipment, which wastes time and increases construction costs.

[0005] 2. Poor stability: The working environment of railway tunnels is unique, and the underground or narrow space limits the stability of scaffolding. In these environments, existing scaffolding is prone to instability, especially when the tunnel ground is uneven or the construction space is limited. Scaffolding often sways or tilts, posing a safety hazard to construction workers.

[0006] 3. Inconvenient assembly and disassembly, resulting in low efficiency: Traditional scaffolding assembly and disassembly processes are cumbersome and time-consuming, requiring construction workers to make multiple adjustments and reassembles. During skylight operations, each work session is typically limited to a fixed 240 minutes or less. The excessively long assembly and disassembly time of traditional scaffolding significantly impacts construction efficiency and fails to meet the demands of high-efficiency construction. Furthermore, frequent assembly and disassembly lead to wear and tear on fasteners and connecting components, increasing maintenance costs.

[0007] 4. Space constraints and inconvenient operation: Inside railway tunnels, the space is small and the construction environment is harsh. The existing scaffolding has limited space for operation and adjustment. Construction workers often experience low work efficiency or even construction errors during dismantling and assembly due to insufficient operating space.

[0008] Therefore, the key to solving the above-mentioned technical problems lies in developing a lightweight and mobile construction scaffold for railway tunnels that is easy to transport and disassemble, and has high stability. Summary of the Invention

[0009] In view of the many defects and shortcomings of the above-mentioned background technology, this utility model has made improvements and innovations, aiming to provide a lightweight and mobile construction scaffold for railway tunnels that is easy to transport and disassemble, safe and reliable, capable of being quickly erected in confined spaces while ensuring safety, while improving construction efficiency, reducing labor consumption, and meeting the high efficiency, economy and safety requirements of modern railway tunnel construction.

[0010] To solve the above problems and achieve the above-mentioned invention objectives, this utility model provides a lightweight and mobile construction scaffold for railway tunnels, achieved through the following design structure and technical solutions:

[0011] A lightweight, mobile construction scaffold for railway tunnels, comprising:

[0012] Mobile base frame;

[0013] The support frame is rotatably connected to both sides of the movable base frame via several hinges.

[0014] Adjustable support components are connected to the four upper corners of the two support frames respectively;

[0015] Adjustable outriggers are connected to the lower ends of the two non-rotating sides of the two support frames respectively;

[0016] Locking components are connected to the four corners above the movable base frame to fix the corresponding adjustable support components after the support frame is folded.

[0017] Scaffolding assembly, the lower part of which is detachably mounted on each adjustable support assembly.

[0018] Preferably, the scaffolding assembly includes at least one set of scaffolding units, and the scaffolding unit includes:

[0019] The brackets are respectively fitted onto two adjustable support components at both ends of each support frame;

[0020] Scissor braces, which are detachably installed at both ends between two opposing brackets;

[0021] Connecting rods are respectively sleeved between two adjacent brackets above the two support frames;

[0022] The foot pedals are respectively attached between the two brackets above each support frame and between the two connecting rods.

[0023] Preferably, each scaffolding unit is interlocked with the others to form a scaffolding assembly;

[0024] The inner diameter of the lower part of both ends of the bracket is adapted to the outer diameter of the upper part of both ends of the bracket;

[0025] The connecting sleeves at both ends of the connecting rod are adapted to the outer diameter of the upper ends of the bracket.

[0026] Preferably, the scaffolding assembly further includes adjustable cross braces, which are connected to the upper outer side of each support via latches to contact the inner wall of the tunnel and increase lateral stability.

[0027] The adjusting cross brace includes an adjusting crossbar and a cross brace seat that is threadedly connected to the outer end of the adjusting crossbar.

[0028] Preferably, the mobile base includes a fixed frame and movable wheels connected to the four corners of the bottom of the fixed frame, wherein the movable wheels are equipped with a braking device to work together.

[0029] Preferably, the support frame includes a rectangular frame and several horizontal and vertical bars connected inside the rectangular frame;

[0030] The hinge is a hinge with one end fixedly connected to a rectangular frame and the other end fixedly connected to a fixing bracket.

[0031] Preferably, the adjustment support assembly includes:

[0032] Adjusting sleeves are connected at each corner of the support frame.

[0033] Adjustable support, which is threadedly connected to the upper part of the adjusting sleeve.

[0034] Preferably, the adjusting sleeve is a tubular structure with open ends and a hollow interior, and the interior of the adjusting sleeve is provided with an internal thread section.

[0035] The lower part of the adjusting support is provided with a threaded post that matches the internal thread section of the adjusting sleeve, and the upper part is provided with a support cylinder that matches the lower part of the bracket.

[0036] The lower threaded column of the adjusting support is also threaded with a locking nut.

[0037] Preferably, the adjustable legs are all connected to the two inner corners of the outer side of each support frame by locking components;

[0038] The adjustable outrigger includes a fixed sleeve, which is detachably mounted on the locking element;

[0039] The outriggers are threadedly connected to the lower part of the fixed cylinder.

[0040] Preferably, it also includes fixing ropes connected to both ends of the scaffold assembly, with one end of the fixing rope connected to the upper inner side of the support and the other end connected to the track.

[0041] The working principle is as follows: When in use, construction workers can climb from the ladder of each support (71) to the footboard (74) at the top of the scaffolding assembly (7) to repair the arch of the tunnel (9). When repair work needs to be carried out at the next location, after the repair work at that location is completed, the construction workers can get down from the footboard (74) to the ground, and then slightly adjust the position of the outriggers (53). Afterwards, the brake device on the moving wheel (12) is released, and the worker can move along the track (10) to the next repair location for inspection via the moving wheel (12). After reaching the designated location, the worker only needs to lock the brake device on the moving wheel (12), and after adjusting each outrigger (53) down to contact the ground, the tunnel arch at that location can be repaired. According to the above inspection method, the tunnel arch can be repaired quickly within the specified working time.

[0042] After use, the construction workers removed the top foot pedal (74), scissor brace (72), connecting rod (73), and bracket (71) in the order of dismantling. They continued to dismantle the scaffold assembly (7) in the order of dismantling until the scaffold assembly (7) was completely dismantled. During the dismantling process, the dismantled parts were sorted and placed. After the dismantling was completed, the construction workers folded the two support frames (2) so that the two support frames (2) were perpendicular to the mobile base frame (1). Then, the support frames (2) were fixed to the mobile base frame (1) by the corresponding locking parts (6).

[0043] Finally, place the disassembled scaffolding components (7) onto the mobile base frame (1) in sequence to quickly store the scaffolding components (7). Then, release the brake on the mobile wheels (12) so that the device can be quickly moved out of the maintenance area along the track (10) by the mobile wheels (12).

[0044] If the scaffolding assembly (7) is not level after installation during the above-mentioned use, it can be adjusted by adjusting the adjusting support (42) on the support assembly (4); simply rotate one or more of the corresponding adjusting support (42) at the relative height of the adjusting sleeve (41) to accurately adjust the level of the scaffolding assembly (7) and ensure that the scaffolding can remain level during installation.

[0045] The adjustable outrigger (5) can be adjusted according to the unevenness of the ground. By rotating the outrigger (53), the support frame (2) can always be kept horizontal. Construction workers can install and use the scaffolding according to the height of the construction site and the manufacturing height of the support (71). At least one set of scaffolding units should be used.

[0046] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0047] 1. This utility model has a simple, lightweight structure, is easy to transport and disassemble, and has high stability. It can be quickly assembled in confined spaces while ensuring safety, while improving construction efficiency, reducing labor consumption, and meeting the high efficiency, economy and safety requirements of modern railway tunnel construction.

[0048] 2. This utility model is ingeniously and reasonably designed. Both ends of the mobile base are connected to support frames through hinges. When in use, the scaffolding components can be installed on the support frames by unfolding them. When not in use, the support frames can be folded and locked by locking components, which can store the scaffolding components. The mobile base can be easily pushed by the wheels, which greatly improves the convenience of equipment storage and transportation.

[0049] 3. The adjustable support components on the support frame of this utility model can precisely adjust the horizontal plane of the scaffold components, ensuring that the scaffold can remain flat during installation. This not only avoids construction difficulties caused by unevenness, but also prevents instability of the scaffold structure and enhances construction safety.

[0050] 4. The adjustable outriggers of this utility model can be adjusted according to uneven ground conditions, so that the support frame always remains horizontal; the support frame maintains stability and balance by adjusting the outriggers, thereby reducing the probability of accidents caused by unstable scaffolding, ensuring the safety of construction workers, and providing better protection.

[0051] 5. The scaffolding component of this utility model is also equipped with an adjustable cross brace. The contact between one end of the adjustable cross brace and the inner wall of the tunnel can greatly improve the lateral stability of the scaffolding. Especially under the influence of lateral load or external force, the scaffolding will not tilt or shift, reducing the risk caused by instability during construction.

[0052] 6. The scaffolding assembly of this utility model is also connected to two fixed ropes on both sides above the top. The other end of the fixed rope is detachably connected to the track to prevent the scaffolding assembly from moving on the track during construction, thereby increasing the safety and stability of the construction process and avoiding equipment displacement caused by external forces or construction operations.

[0053] 7. This utility model is lightweight and stable. The top of the scaffolding component can stably bear a load of 700 kg. The working area on the top of the scaffolding is large, reaching 7 square meters, and it can be moved quickly. At the same time, it has the characteristics of easy and simple processing, few special processing parts, low investment (investment less than 500 yuan), light weight, the main components are general-purpose standard building scaffolding, and easy assembly.

[0054] 8. This utility model is applicable to double-track tunnels of conventional railways and single-track and double-track tunnels of high-speed railways, and has a wide range of applicability; at the same time, it can also be used as a repair platform for sidewall defects on both sides of railway tunnels, and as a maintenance platform for highway tunnels. Attached Figure Description

[0055] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings, wherein:

[0056] Figure 1 This is one of the usage state diagrams of this utility model;

[0057] Figure 2 This is a utility model Figure 1 A magnified view of a section at point A;

[0058] Figure 3 This is a utility model Figure 1 A magnified view of section B;

[0059] Figure 4 This is the second diagram showing the usage state of this utility model;

[0060] Figure 5 This is the third diagram showing the usage state of this utility model;

[0061] Figure 6 This is one of the schematic diagrams illustrating the working principle of a partial component of this utility model;

[0062] Figure 7 This is the second schematic diagram of the working principle of a partial component of this utility model;

[0063] Figure 8 This is a schematic diagram of the overall structure of this utility model;

[0064] Figure 9 This is a structural schematic diagram of a partial component of this utility model in its unfolded state;

[0065] Figure 10 This is a utility model Figure 9 A magnified view of section C;

[0066] Figure 11 This is a structural schematic diagram of a partial component of this utility model in a folded state;

[0067] Figure 12 This is a utility model Figure 11 Enlarged view of a section at point D;

[0068] Figure 13 This is a schematic diagram of another design structure of this utility model;

[0069] Figure 14 This is a schematic diagram of another design structure for folding and storage of this utility model;

[0070] In the diagram, the numbers are: 1—movable base frame, 11—fixed frame, 12—moving wheels;

[0071] 2—Support frame;

[0072] 3—Hinges;

[0073] 4—Adjusting support assembly, 41—Adjusting sleeve, 42—Adjusting support piece, 43—Locking nut;

[0074] 5—Adjustable outrigger, 51—Locking component, 52—Fixing cylinder, 53—Outrigger;

[0075] 6—Locking components;

[0076] 7—Scaffolding component; 71—Support; 72—Scissor brace; 73—Connecting rod; 74—Footboard; 75—Adjustable cross brace;

[0077] 8—Fixing rope;

[0078] 9—Tunnel;

[0079] 10—Orbit. Detailed Implementation

[0080] To make the technical means, inventive features, objectives, and effects of this utility model readily understandable, the technical solution of this utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. The present utility model will now be described in detail with reference to the accompanying drawings and embodiments.

[0081] A more specific embodiment of this utility model is as follows:

[0082] Before this type of lightweight mobile construction scaffolding for railway tunnels can be used, it needs to be fabricated and installed as a backup.

[0083] Example 1

[0084] As per the instruction manual Figures 1 to 14 As shown, a lightweight mobile construction scaffold for railway tunnels includes:

[0085] Mobile base frame 1;

[0086] Support frame 2 is rotatably connected to both sides of movable base frame 1 by several hinges 3;

[0087] Adjustable support components 4 are connected to the upper four corners of the two support frames 2 respectively;

[0088] Adjustable support legs 5 are connected to the lower ends of the two non-rotating sides of the two support frames 2 respectively;

[0089] Locking components 6 are connected to the four corners above the movable base frame 1 to fix the corresponding adjustable support components 4 after the support frame 2 is folded.

[0090] Scaffolding assembly 7, the lower part of which is detachably mounted on each adjustable support assembly 4.

[0091] Furthermore, the scaffolding assembly 7 includes at least one set of scaffolding units, and the scaffolding unit includes:

[0092] Bracket 71 is respectively sleeved and installed on two adjusting support components 4 at both ends of each support frame 2;

[0093] The scissor brace 72 is detachably installed at both ends between two opposing brackets 71.

[0094] Connecting rod 73 is respectively sleeved between two adjacent brackets 71 above the two support frames 2;

[0095] Foot pedal 74 is respectively engaged between two brackets 71 above each support frame 2 and between two connecting rods 73.

[0096] Specifically, each scaffolding unit is interlocked to form scaffolding assembly 7;

[0097] The inner diameter of the lower part of both ends of the bracket 71 is adapted to the outer diameter of the upper part of both ends of the bracket 71;

[0098] The connecting sleeves at both ends of the connecting rod 73 are adapted to the outer diameter of the upper ends of the bracket 71.

[0099] In this invention, the lower ends of the bracket 71 are fitted into the support cylinders on the upper part of the adjusting support member 42; the inner diameter of the lower ends of the bracket 71 matches the outer diameter of the upper ends of the bracket 71, facilitating the installation of the scaffold assembly 7, where the lower part of the bracket 71 of the upper scaffold unit fits into the upper part of the bracket 71 of the lower scaffold unit, greatly increasing flexibility. The uprights of the bracket 71 have built-in insertion holes, enabling multi-layer assembly.

[0100] Furthermore, the movable base frame 1 includes a fixed frame 11 and movable wheels 12 connected to the four corners of the bottom of the fixed frame 11, wherein the movable wheels 12 are equipped with a braking device to work together.

[0101] In this utility model, the fixing frame 11 includes a square frame structure and several horizontal and vertical bars connected inside the square frame structure. The fixing frame 11 is a rectangular frame welded from channel steel, with dimensions of 3.5 × 2 meters. Two horizontal and three vertical reinforcing skeletons are provided inside the frame, respectively. The reinforcing skeletons are made of channel steel (a combination of steel bars and channel steel). Two pads are installed at the bottom of each of the #1 and #3 longitudinal reinforcing skeletons. Moving wheels 12 are installed under the pads. The moving wheels 12 are plastic pulleys with brake clips. The net distance between the pulleys and their inner sides is 1435 mm (i.e., the width of the railway track). The base of the lightweight mobile construction scaffold for railway tunnels moves on the railway track via these pulleys. The inner circumference of the moving wheels 12 is connected to a rim, while the outer circumference is not.

[0102] Furthermore, the support frame 2 includes a rectangular frame and several horizontal and vertical bars connected inside the rectangular frame;

[0103] The hinge 3 is a hinge, one end of which is fixedly connected to the rectangular frame and the other end is fixedly connected to the fixing frame 11.

[0104] Furthermore, the adjustment support component 4 includes:

[0105] Adjusting sleeve 41 is connected through each corner of the support frame 2;

[0106] Adjusting support 42 is threadedly connected to the upper part of adjusting sleeve 41.

[0107] Specifically, the adjusting sleeve 41 is a tubular structure with open ends and hollow interior, and the interior of the adjusting sleeve 41 is provided with an internal thread section.

[0108] The lower part of the adjusting support 42 is provided with a threaded post that matches the internal thread section of the adjusting sleeve, and the upper part is provided with a support cylinder that matches the lower part of the bracket 71.

[0109] Among them, the threaded column at the lower part of the adjusting support 42 is also threadedly connected to the locking nut 43.

[0110] In this utility model, in order to increase the stability of the scaffold assembly 7, a tightening hole can be opened on the support cylinder at the upper part of the adjusting support 42. A tightening member is threaded into the tightening hole. After the bracket 71 is installed, the bracket 71 is tightened by the tightening member, which can greatly increase the stability of the scaffold assembly 7.

[0111] Furthermore, each of the adjustable support legs 5 is connected to the two inner corners of the outer side of each support frame 2 via locking members 51;

[0112] Adjustable outrigger 5 includes: a fixed cylinder 52, which is detachably mounted on the locking member 51;

[0113] The outrigger 53 is threadedly connected to the lower part of the fixed cylinder 52.

[0114] In this utility model, the fixing cylinder 52 of each adjusting leg 5 can also be directly fixedly connected to the two corners on the outside of each support frame 2, and is not limited to being connected to the support frame 2 through the locking member 51.

[0115] like Figure 4 and Figure 13 As shown, this embodiment takes the assembly of three sets of scaffolding units as an example;

[0116] Before installing the scaffolding, the construction workers first cleaned the work area to ensure that the ground was flat and could support the installation and use of the adjustable outriggers 5. At the same time, they checked all scaffolding components (movable base frame, support frame, hinges, adjustable support components, etc.) to ensure that they were intact, functioning properly, and that all accessories were complete.

[0117] During installation and use, such as Figure 14 As shown, the construction workers will push the device along the track 10 to the designated maintenance area using the moving wheels 12 and lock the brake device on the moving wheels 12.

[0118] Then, the construction workers moved the scaffolding component 7 on the mobile base frame 1 to a nearby location to facilitate the subsequent installation of the scaffolding component 7;

[0119] Immediately afterwards, such as Figure 6 and Figure 9 As shown, the construction workers loosen the locking pieces 6 on the fixed frame 11, fold the two support frames 2 outwards, and then adjust the adjustable legs 5 so that the legs 53 are in contact with the ground, making the two support frames 2 flush with the movable base frame 1 and parallel to the ground.

[0120] Then, the construction workers can assemble the scaffolding component 7. When assembling the scaffolding component 7: First, the construction workers insert the lower parts of the four supports 71 into the two adjusting supports 42 above the two support frames 2 in the width direction; then, the construction workers attach the two ends of the connecting rod 73 to the two adjacent supports 71 on the same side; next, the construction workers attach the foot pedals 74 to the two supports 71 above each support frame 2 and the two connecting rods 73; then, the construction workers detachably install the scissor braces 72 at the two ends between the two supports 71 above each support frame 2 through the connectors.

[0121] Following the above installation method, the lower parts of the other four brackets 71 are respectively inserted into the brackets 71 of the lower scaffold unit. Then, the above assembly method is used to complete the installation of the second set of scaffold units. The third set of scaffold units is installed above the second set of scaffold units according to the second assembly method until the installation of the third set of scaffold units is completed.

[0122] Finally, depending on the specific construction needs, the construction workers can install multiple foot pedals 74 between the two supports 71 and the two connecting rods 73 above each support frame 2.

[0123] In use, construction workers can climb the ladders on each support 71 to the footboard 74 at the top of the scaffolding assembly 7 to repair the arch of the tunnel 9. When repairs are needed at the next location, after completing the repairs at the current location, the workers can descend from the footboard 74 to the ground, then slightly adjust the position of the outriggers 53. Afterwards, the brakes on the moving wheels 12 are released, allowing the workers to move along the track 10 to the next repair location. Once the designated location is reached, the brakes on the moving wheels 12 are locked, and the outriggers 53 are lowered until they are in contact with the ground, allowing for repairs to be carried out on the tunnel arch at that location. Following this repair method, rapid repairs to the tunnel arch can be performed within the designated working time.

[0124] After use, the construction workers removed the top foot pedal 74, scissor brace 72, connecting rod 73, and bracket 71 in the order of dismantling. They continued to dismantle the scaffolding assembly 7 in the above order until it was completely removed. During the dismantling process, the dismantled parts were sorted and placed. After the dismantling was completed, the construction workers folded the two support frames 2 so that the two support frames 2 were perpendicular to the mobile base frame 1. Then, the support frames 2 were fixed to the mobile base frame 1 by the corresponding locking parts 6.

[0125] Finally, place the disassembled scaffolding assembly 7 components onto the mobile base 1 in sequence to achieve quick storage of the scaffolding assembly 7. Then, release the brake device on the mobile wheels 12, and the device can be quickly moved out of the maintenance area along the track 10 via the mobile wheels 12.

[0126] If the scaffolding assembly 7 is not level after installation during the above-mentioned use, it can be adjusted by adjusting the adjusting support 42 on the support assembly 4; simply rotate one or more of the corresponding adjusting support 42 to adjust the relative height of the adjusting sleeve 41 to achieve precise adjustment of the level of the scaffolding assembly 7, ensuring that the scaffolding can remain level during installation.

[0127] The adjustable outrigger 5 can be adjusted according to uneven ground conditions. By rotating the outrigger 53, the support frame 2 can always be kept horizontal. Construction workers can install and use the scaffolding according to the height of the construction site and the fabrication height of the support 71. At least one set of scaffolding units should be used.

[0128] Example 2

[0129] This embodiment is basically the same as embodiment 1, except that the scaffolding assembly 7 also includes an adjusting cross brace 75. The adjusting cross brace 75 is connected to the upper outer side of each support 71 by a locking buckle, and is used to contact the inner wall of the tunnel 9 to increase lateral stability. The adjusting cross brace 75 includes an adjusting crossbar and a cross brace seat threaded to the outer end of the adjusting crossbar.

[0130] During installation and use, the construction workers connect the adjusting cross braces 75 to the upper outer side of each bracket 71 through the locking buckle, and then adjust the position of the adjusting cross braces 75 so that the cross brace seat of the adjusting cross brace 75 contacts the inner wall of the tunnel 9, which greatly increases the lateral stability of the scaffolding device.

[0131] During use, the number of adjustable cross braces 75 can be installed according to the specific usage situation, and is not limited to every scaffolding unit. When it is necessary to move to the next maintenance area, based on the moving use in the above embodiment, only the cross brace seat of the adjustable cross brace 75 needs to be slightly adjusted. When moving to the designated area, the cross brace seat of the adjustable cross brace 75 can be brought into contact with the inner wall of the tunnel 9 to carry out subsequent maintenance work.

[0132] During disassembly and assembly, follow the disassembly and assembly process from top to bottom, and remove the foot pedal 74, scissor brace 72, connecting rod 73, adjusting cross brace 75 and bracket 71 in sequence.

[0133] Example 3

[0134] like Figure 4 and Figure 5 As shown, this embodiment is basically the same as embodiment 2, except that it also includes fixing ropes 8 connected to both ends of the scaffold assembly 7. One end of the fixing rope 8 is connected to the upper inner side of the support 71, and the other end is connected to the track 10.

[0135] During installation and use, construction workers connect one end of the fixing rope 8 to the two supports 71 of the top scaffold unit through quick-connect fittings, and connect the other end of the fixing rope 8 to the track 10 through quick-connect fittings, further increasing the longitudinal stability of the scaffold device. At the same time, with the brake device of the moving wheel 12 locked and the adjusting cross brace 75 in contact with the inner wall of the tunnel 9, the lateral stability of the scaffold device is increased. The combination of these three factors greatly increases the stability of the scaffold device during use.

[0136] When it is necessary to move to the next maintenance area during use, based on the above embodiment, simply disconnect the connection between the fixing rope 8 and the track 10, and then lock it back in place once the designated area is reached. The number of fixing ropes 8 can be installed according to the specific usage, and is not limited to use only on the top scaffolding unit.

[0137] During disassembly and assembly, follow the disassembly and assembly process from top to bottom, and remove the fixing rope 8, foot pedal 74, scissor brace 72, connecting rod 73, adjusting cross brace 75 and bracket 71 in sequence.

[0138] This utility model is ingeniously conceived, simple to manufacture, and has a lightweight base weighing only about 60 kilograms, resulting in low modification costs for existing scaffolding. It utilizes plastic pulleys for rapid movement. Assembled using standardized building scaffolding, it has fewer parts, making it easy to operate and quick to assemble. The average assembly and disassembly time is only about 15 minutes each, more than doubling the efficiency compared to ordinary scaffolding. The scaffolding platform has a large area, facilitating work and the placement of tools and materials. Using standardized building scaffolding as the main component ensures universal material availability, reliable quality, and good safety and stability.

[0139] With simple modifications, the base of the lightweight mobile construction scaffolding for railway tunnels can also be used as a flatcar for railway tracks, achieving a multi-functional purpose. By erecting an extension platform in the middle of the lightweight mobile construction scaffolding for railway tunnels, repairs can be carried out on the side walls of the tunnel. By replacing the pulleys with rubber wheels, the lightweight mobile construction scaffolding for railway tunnels can be widely used in the maintenance and repair of highway tunnels.

[0140] Finally, it should be noted that the concept, specific structure, and technical effects of this utility model have been clearly and completely described above in conjunction with the embodiments and accompanying drawings, so as to fully understand the purpose, features, and effects of this utility model. Obviously, the described embodiments are only a part of the embodiments of this utility model, not all of them. Other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are all within the scope of protection of this utility model. Furthermore, all connections and connection relationships mentioned herein do not simply refer to direct connection of components, but rather to the ability to form a better connection structure by adding or reducing connecting accessories according to specific implementation conditions. The various technical features in this utility model can be combined interactively without contradicting each other.

Claims

1. A lightweight, mobile construction scaffold for railway tunnels, characterized in that: include: Mobile base frame (1); Support frame (2), which is rotatably connected to both sides of the movable base frame (1) by several hinges (3); Adjust the support assembly (4), which is connected to the upper four corners of the two support frames (2); Adjustable support legs (5) are connected to the lower ends of the two non-rotating sides of the two support frames (2); Locking parts (6) are connected to the four corners above the movable base frame (1) respectively, and are used to fix the corresponding adjustment support components (4) after the support frame (2) is folded. The scaffolding assembly (7) has its lower part detachably mounted on each adjustable support assembly (4).

2. The lightweight mobile construction scaffold for railway tunnels according to claim 1, characterized in that: The scaffolding assembly (7) includes at least one set of scaffolding units, and the scaffolding unit includes: The bracket (71) is respectively fitted onto the two adjusting support components (4) at both ends of each support frame (2); The scissor braces (72) are detachably installed at both ends between two opposing brackets (71); Connecting rod (73), connecting rod (73) is respectively sleeved between two adjacent brackets (71) above the two support frames (2); Foot pedal (74) is respectively engaged between two brackets (71) above each support frame (2) and between two connecting rods (73).

3. The lightweight mobile construction scaffold for railway tunnels according to claim 2, characterized in that: Each set of scaffolding units is interlocked together to form a scaffolding assembly (7). The inner diameter of the lower part of both ends of the bracket (71) is adapted to the outer diameter of the upper part of both ends of the bracket (71); The connecting sleeves at both ends of the connecting rod (73) are adapted to the outer diameters of the upper ends of the bracket (71).

4. The lightweight mobile construction scaffold for railway tunnels according to claim 2, characterized in that: The scaffolding assembly (7) also includes an adjustable cross brace (75), which is connected to the upper outer side of each support (71) by a locking buckle, for contacting the inner wall of the tunnel (9) to increase lateral stability; The adjusting cross brace (75) includes an adjusting crossbar and a cross brace seat threaded to the outer end of the adjusting crossbar.

5. The lightweight mobile construction scaffold for railway tunnels according to claim 1, characterized in that: The mobile base (1) includes a fixed frame (11) and mobile wheels (12) connected to the four corners of the bottom of the fixed frame (11). The mobile wheels (12) are equipped with a brake device to work together.

6. The lightweight mobile construction scaffold for railway tunnels according to claim 1, characterized in that: The support frame (2) includes a rectangular frame and several horizontal and vertical bars connected inside the rectangular frame; The hinge (3) is a hinge with one end fixedly connected to the rectangular frame and the other end fixedly connected to the fixing frame (11).

7. The lightweight mobile construction scaffold for railway tunnels according to claim 1, characterized in that: The adjustable support assembly (4) includes: Adjusting sleeve (41) is connected through each corner of the support frame (2); Adjustment support (42) is threadedly connected to the upper part of adjustment sleeve (41).

8. The lightweight mobile construction scaffold for railway tunnels according to claim 7, characterized in that: The adjusting sleeve (41) is a tubular structure with open ends and hollow interior, and the interior of the adjusting sleeve (41) is provided with an internal thread section. The lower part of the adjusting support (42) is provided with a threaded post that is adapted to the internal thread section of the adjusting sleeve, and the upper part is provided with a support cylinder that is adapted to the lower part of the bracket (71). Among them, the threaded column at the lower part of the adjusting support (42) is also threaded with a locking nut (43).

9. The lightweight mobile construction scaffold for railway tunnels according to claim 1, characterized in that: The adjustable legs (5) are all connected to the two corners on the outside of each support frame (2) by locking parts (51); The adjustable outrigger (5) includes: a fixed cylinder (52), which is detachably mounted on the locking member (51); The outrigger (53) is threaded to the lower part of the fixed cylinder (52).

10. The lightweight mobile construction scaffold for railway tunnels according to claim 1, characterized in that: It also includes fixing ropes (8) that are connected to both ends of the scaffold assembly (7), with one end of the fixing rope (8) connected to the upper inner side of the support (71) and the other end connected to the track (10).

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